Allegro 電流センサー
高効率・高電圧設計向けの高精度電流検出
Allegroの電流センサは、ガルバニック絶縁、無損失動作、高精度を実現し、コンパクトなシステムで最高の効率と電力密度を可能にします。EVのトラクションインバータおよび補助インバータ、DC-DCコンバータ、オンボードチャージャ、ソーラーインバータ、産業用電源システム向けに設計された当社のソリューションは、最大5 kVRMSの絶縁定格、最小0.1 mΩの超低導体抵抗、およびGaN/SiCパワーエレクトロニクスに対応する最大5 MHzの帯域幅を提供します。
Documentation & Resources
Guide
CT430-20AC Evaluation Board User Guide
The CT430 is a high bandwidth and ultralow-noise integrated contact current sensor that uses Allegro patented XtremeSense™ tunnel magnetoresistance (TMR) technology.
Application Note
Grounding Techniques for the ACS37800, Allegro's Power Monitoring IC: Ensuring Proper Device Functionality and Measurement Accuracy
The ACS37800 is a highly versatile and integrated power monitoring IC designed for accurate power measurement in both AC and DC applications
Guide
ACS37630 Evaluation Board User Guide
This user guide documents the features, operation, and use of the ACS37630 current sensor with the ASEK37630 evaluation board.
Guide
ACS772CB Evaluation Board User Guide
This document describes the use of the ACS772CB Evaluation Board. This evaluation board is intended for use with the ACS772CB custom 3-pin SOIC current sensor IC.
Guide
A6214 Evaluation Board User Guide
The A6214 is a single-IC switching regulator that provides constant-current output to drive high-power LEDs
Application Note
NTC Thermal Derating
A80804 Thermal Derating using Analog Dimming Calculator
Guide
CT416-50AC Evaluation Board User Guide
The Allegro MicroSystems CTD416-50AC evaluation board contains the CT416—XtremeSense™ tunnel magnetoresistance (TMR) integrated circuit (IC).
Brochure
Enhancing Robotic Design
With the continuously evolving robotic market and formation of new applications, there is a need for higher levels of system accuracy and reliability.
Application Note
AMT49100 Start-Up Sequence
This application note is intended to provide user guidelines for the recommended power-up sequence to ensure a robust and reliable start-up when using the Allegro AMT49100 gate driver.
Application Note
High Voltage Buck-Boost LED Headlamp Driver Using Allegro A6271-1
This application note discusses the features and application of the Allegro A6271-1 switching LED controller in automotive high-power applications when driving a high number of LEDs.
Guide
CT427-20AC Evaluation Board User Guide
The Allegro MicroSystems CTD427-20AC evaluation board contains the CT427—XtremeSense™ tunnel magnetoresistance (TMR) integrated circuit (IC).
Whitepaper
Power Smarter Tools with the A89212 SoC
Discover how Allegro’s A89212 Motor Control SoC enables faster, more efficient cordless tool designs—across drills, saws, e-bikes, and more.
Application Note
AN296358 - ASEK21 External Supply Triggered Programming
External Supply Triggered programming is a method for the ASEK programmer where it will monitor a system’s power supply until it has turned on, after which the programmer will unlock up to four devices simultaneously.
FAQ
Important Update to Allegro Shipping Labels and Documentation
Due to customs regulations of the different countries where Allegro MicroSystems’ integrated circuits are imported, we have revised our labeling and documentation to reflect Country of Diffusion (COD) (also referred to as country of wafer fabrication) and Country of Assembly (COA).
Application Note
Defining Electrostatic Discharge (ESD) Ratings for Allegro Integrated Current-Sensors
Electrostatic discharge (ESD) is a sudden and momentary flow of electric current between two objects with different electrostatic potentials.
Guide
APS13568 Proto Board User Manual
The APS13568 integrates an ultrasensitive Hall-effect switch with a linear programmable current regulator that provides up to 150 mA for driving a string of high brightness LEDs.
Guide
A17803 Evaluation Kit User Guide
The A17803 evaluation kit provides an easy way to evaluate the Allegro A17803 integrated circuit (IC) using a computer running Microsoft Windows.
Guide
CT4032 Evaluation Board User Guide
The CT4032 is a highly linear, XtremeSense™ TMR-based current sensor. The tunneling-magnetoresistance (TMR) sensor is differential, which enables common-mode field rejection to cancel out stray magnetic fields.
Guide
ACS70311 Sample Programming Guide
This quick guide documents the use of the ACS7031x daughterboard (TED-0003346) and the ASEK-20 (Part #85-0540-004) with the Allegro ACS70311 samples programmer
Application Note
AHV85111 Design and Application Guide
This application note will describe how to choose components and their placement when designing with the AHV85111 isolated gate driver.
Guide
A4955 Evaluation Board User Guide
This evaluation board is used to demonstrate the Allegro A4955GES full-bridge PWM gate driver IC.
Guide
ACS37800 Sample Programming Guide
This quick guide documents the use of the ASEK37800 evaluation boards (TED-0003306, TED-0003358, TED0003359, TED-0003360, and TED-0003361) with the Allegro ACS37800 samples programmer.
Guide
ACS724KMA Evaluation Board User Guide
This document describes the use of the ACS724KMA Evaluation Board. This evaluation board (TED-0001775) is intended for use with the ACS724KMA 16-pin SOIC current sensor IC.
Application Note
Dual-Bridge Design Guidelines for ACS37610S
This application note details a novel dual-bridge busbar design specifically optimized for the ACS37610S to improve displacement error performance significantly.
Guide
ACS70310 Sample Programming Guide
This quick guide documents the use of the ACS70310 daughterboard (TED-0002702) and the ASEK-20 (Part #85-0540-004) with the Allegro ACS70310 samples programmer
Application Note
CT456 Busbar Design Guidelines
The CT456 is a high-bandwidth, low-noise field sensor that uses XtremeSense™ tunnel-magnetoresistance (TMR) technology to enable high-accuracy current measurements for consumer, enterprise, and industrial applications
Guide
CT432-20AC Evaluation Board User Guide
The CT432 is a high bandwidth and ultralow-noise integrated contact current sensor that uses Allegro patented XtremeSense™ tunnel magnetoresistance (TMR) technology.
Guide
CT220RMV-IS5 BB-15 Evaluation Board User Guide
The CTD221-BB-15 evaluation board is designed to demonstrate the current sensing capabilities of the CT220 linear magnetic sensor from Allegro MicroSystems.
Application Note
IEC61000-4-X Standard: EMC Testing and Measurement as Applied to Allegro Integrated Current Sensors
The IEC61000-4-x standard defines testing methodologies to ensure electromagnetic compatibility between electronic systems. These tests cover immunity to electrostatic discharge, electrical fast transient/burst, and surge voltages.
Guide
CT426-50AC Evaluation Board User Guide
The Allegro MicroSystems CTD426-50AC evaluation board contains the CT426—XtremeSense™ tunnel magnetoresistance (TMR) integrated circuit (IC).
Guide
CT426-20AC Evaluation Board User Guide
The Allegro MicroSystems CTD426-20AC evaluation board contains the CT426—XtremeSense™ tunnel magnetoresistance (TMR) integrated circuit (IC).
Application Note
A89303 Evaluation Board User Guide
An automotive fuel pump is the part of a fuel delivery system that pumps fuel, at a specified pressure and flow rate, to the engine through additional components, such as filters
Guide
ACS37610 Evaluation Board User Guide
This user guide documents the features, operation, and use of the ACS37610 current sensor with the ASEK37610 evaluation board.
Guide
A4950 Evaluation Board User Guide
This evaluation board is used to demonstrate the Allegro A4950xLJ full-bridge DMOS PWM motor driver IC.